// ==========================API DOCS=======================================
// API Name: Stream data to specified file
// Action: Write the data from http to the file streamingly
// API URL: /io/{contianer}/{followingpath}
// REQUEST: PUT
// Parameters:
// - contianer(in URL): the container name
// Returns:
// - HTTP 200: No error, the file is written by force
// When success, the returned header Parent-Node(if accessed) will
// contain its parent inode and File-Node will indicate the file itself.
// - HTTP 404: Either the container or the filepath does not exist.
// - HTTP 500: Error. The body is supposed to return error info.
// ==========================API DOCS END===================================
func uploader(req Request, res Response) {
var pathDetail, _ = req.F()["HandledRR"].([]string)
if pathDetail == nil {
pathDetail = req.F()["RR"].([]string)
pathDetail = append(pathDetail, filesystem.ROOT_INODE_NAME)
}
var fs = filesystem.GetFs(outapi.NewSwiftio(outapi.DefaultConnector, pathDetail[1]))
if fs == nil {
res.Status("Internal Error: the FS pool is full.", 500)
}
defer fs.Release()
var putErr error
if base, filename := pathman.SplitPath(pathDetail[2]); filename == "" {
// TODO: glean user meta
putErr, _ = fs.Put("", pathDetail[3], nil, req.R().Body)
res.Set(FILE_NODE, pathDetail[3])
} else {
var nodeName, err = fs.Locate(base, pathDetail[3])
if err != nil {
res.Status("Nonexist container or path. "+err.Error(), 404)
return
}
// TODO: glean user meta
var targetNode string
putErr, targetNode = fs.Put(filename, nodeName, nil, req.R().Body)
if targetNode != "" {
res.Set(FILE_NODE, targetNode)
}
res.Set(PARENT_NODE, nodeName)
}
if !egg.Nil(putErr) {
if egg.In(putErr, exception.EX_FILE_NOT_EXIST) {
res.Status("Nonexist container or path. Or you cannot refer to a non-existing inode in ovveride mode.", 404)
return
}
res.Status("Internal Error: "+putErr.Error(), 500)
return
}
res.SendCode(200)
}
func mvDirectory(req Request, res Response) {
//===============measurement========================
var startTime int64 = 0
if req.Get("Enable-Measure") == "True" {
startTime = time.Now().UnixNano()
}
//==================================================
var pathDetail, _ = req.F()["HandledRR"].([]string)
if pathDetail == nil {
pathDetail = req.F()["RR"].([]string)
pathDetail = append(pathDetail, filesystem.ROOT_INODE_NAME)
}
var base, filename = pathman.SplitPath(pathDetail[2])
if filename == "" {
res.Status("The directory/file to move should be specified.", 404)
return
}
var destinationALL = req.Get(HEADER_DESTINATION)
if destinationALL == "" {
res.Status("Destination path should be specified in the Header "+HEADER_DESTINATION, 403)
return
}
var destinationSC, destinationPath = pathman.ShortcutResolver(destinationALL)
if destinationSC == "" {
destinationSC = filesystem.ROOT_INODE_NAME
} else {
if len(destinationPath) > 0 {
destinationPath = destinationPath[1:]
}
}
var desBase, desFilename = pathman.SplitPath(destinationPath)
if desFilename == "" {
res.Status("The destination directory/file should be specified.", 404)
return
}
var fs = filesystem.GetFs(outapi.NewSwiftio(outapi.DefaultConnector, pathDetail[1]))
if fs == nil {
res.Status("Internal Error: the FS pool is full.", 500)
}
defer fs.Release()
var srcNodeNames, desNodeNames string
var err error
if req.Get(HEADER_DISTABLE_PARALLEL) == "TRUE" {
srcNodeNames, err = fs.Locate(base, pathDetail[3])
if err != nil {
res.Status("Nonexist container or path. "+err.Error(), 404)
return
}
desNodeNames, err = fs.Locate(desBase, destinationSC)
} else {
var wg sync.WaitGroup
var lock sync.Mutex
wg.Add(2)
go (func() {
defer wg.Done()
var err2 error
srcNodeNames, err2 = fs.Locate(base, pathDetail[3])
if err2 != nil {
lock.Lock()
if err == nil {
err = err2
}
lock.Unlock()
}
})()
go (func() {
defer wg.Done()
var err2 error
desNodeNames, err = fs.Locate(desBase, destinationSC)
if err2 != nil {
lock.Lock()
if err == nil {
err = err2
}
lock.Unlock()
}
})()
wg.Wait()
}
if err != nil {
res.Status("Nonexist container or path. "+err.Error(), 404)
return
}
var byForce = req.Get(HEADER_MOVE_BY_FORCE) == "TRUE"
if req.Get(HEADER_DISTABLE_PARALLEL) == "TRUE" {
err = fs.MvX(filename, srcNodeNames, desFilename, desNodeNames, byForce)
} else {
err = fs.MvXParalleled(filename, srcNodeNames, desFilename, desNodeNames, byForce)
}
if !egg.Nil(err) {
if egg.In(err, exception.EX_FILE_NOT_EXIST) {
res.Status("Not Found", 404)
return
}
if egg.In(err, exception.EX_FOLDER_ALREADY_EXIST) {
res.Status("The destination has already existed.", 202)
return
}
res.Status("Internal error: "+err.Error(), 500)
return
}
//=============================================
if startTime > 0 {
res.Set("Time-Consumed", strconv.FormatInt(time.Now().UnixNano()-startTime, 10))
}
//=============================================
res.SendCode(201)
}
// ==========================API DOCS=======================================
// API Name: Remove one directory
// Action: remove the directory only if it exists and its parent path exists
// API URL: /fs/{contianer}/{followingpath}
// REQUEST: DELETE
// Parameters:
// - contianer(in URL): the container name
// - followingpath(in URL): the path to be removed. Please guarantee its parent node exists.
// - Disable-Parallel(in Header): if set to TRUE, a non-parallelized mkdir will be
// operated. Default to FALSE, it is only for test and not recommend to set.
// Returns:
// - HTTP 204: The deletion succeeds but it is only a patch. to ensure created, another list
// operation should be carried.
// When success, 'Parent-Node' will indicate the parent of removed directory.
// - HTTP 404: Either the container or the parent filepath or the file itself does not exist.
// - HTTP 500: Error. The body is supposed to return error info.
// ==========================API DOCS END===================================
func rmDirectory(req Request, res Response) {
//===============measurement========================
var startTime int64 = 0
if req.Get("Enable-Measure") == "True" {
startTime = time.Now().UnixNano()
}
//==================================================
var pathDetail, _ = req.F()["HandledRR"].([]string)
if pathDetail == nil {
pathDetail = req.F()["RR"].([]string)
pathDetail = append(pathDetail, filesystem.ROOT_INODE_NAME)
}
var trimer = pathDetail[2]
var i int
for i = len(trimer) - 1; i >= 0; i-- {
if trimer[i] != '/' {
break
}
}
if i < 0 {
res.Status("The directory to remove should be specified.", 404)
return
}
trimer = trimer[:i+1]
var j int
for j = i; j >= 0; j-- {
if trimer[j] == '/' {
break
}
}
var base = trimer[:j+1]
trimer = trimer[j+1:]
// now trimer holds the last foldername
// base holds the parent folder path
var fs = filesystem.GetFs(outapi.NewSwiftio(outapi.DefaultConnector, pathDetail[1]))
if fs == nil {
res.Status("Internal Error: the FS pool is full.", 500)
}
defer fs.Release()
var nodeName, err = fs.Locate(base, pathDetail[3])
if err != nil {
res.Status("Nonexist container or path. "+err.Error(), 404)
return
}
res.Set(LAST_PARENT_NODE, nodeName)
// TODO: what if the src file does not exist?
if req.Get(HEADER_DISTABLE_PARALLEL) == "TRUE" {
err = fs.Rm(trimer, nodeName)
} else {
err = fs.RmParalleled(trimer, nodeName)
}
if !egg.Nil(err) {
if egg.In(err, exception.EX_INODE_NONEXIST) {
res.Status("Nonexist container or path.", 404)
return
}
if egg.In(err, exception.EX_FILE_NOT_EXIST) {
res.Status("Nonexist container or path.", 404)
return
}
res.Status("Internal Error: "+err.Error(), 500)
return
}
//=============================================
if startTime > 0 {
res.Set("Time-Consumed", strconv.FormatInt(time.Now().UnixNano()-startTime, 10))
}
//=============================================
res.SendCode(204)
}